[Elecraft] Transmit indicator
Something that has always surprised me is that the K2 has no front panel indication of when it is on transmit. The only way to tell is when there is no audio out of the loudspeaker, or the S meter has no LED's lit. If the AF gain were turned fully down there is no way of knowing. I can put my K2 into transmit by any of the following means:- PTT switch on the mic body, switch on the mic base, key, footswitch, VOX or computer. I decided to make a clear indication of when the K2 was on transmit. Getting inspiration from various articles on fitting zero beat indicators to a K2, I now have a small red LED that is positioned in line with the RIT and RATE buttons which illuminates on transmit. This was easily done with a small piece of PCB material cut to size, and fixed as per the zero beat PCB's. The miniature LED is wired with a series 1k resistor between front panel board connector J1 pin 4 (/DOT-PTT) and pin 18 (5A). I now feel much happier that I am not accidentally transmitting over someone else's QSO because of a stuck PTT button on the microphone. 73 Stewart G3RXQ ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] Off Topic But I Couldn't Resist
Hi John, It may seem strange to get some advice from a VK1 re the Bitterroot Valley! I lived in Seattle from 2000 to 2003. In 2000 I read a newspaper article re the re-introduction of Grizzly Bears to the Bitterroot. This sparked my imagination because it implied that the area would probably be remote and beautiful. I reorganized our family's August 2000 summer holiday, a 21 day drive from Seattle to Mesa Verde and return through some of the most fantastic (my opinion) country in the USA to include time traveling through the Bitterroot. Sadly when we arrived the whole area was suffering from serious wildfires (what we in Australia call bushfires) and I wasn't prepared to stay in the cabin we had booked with my young children. Also it seemed morally corrupt that we would consider holidaying in an area where the majority of the locals were fighting for their survival. What we did see confirmed my opinion that the area was remote, wild and beautiful. I hope you decide to give it a go but I recommend that you join a local bush fire brigade and help them with their communications. Best wishes Mike VK1KCK K2 #2599 Message: 25 Date: Sun, 6 Feb 2005 14:22:39 -0800 From: John, KI6WX [EMAIL PROTECTED] Subject: [Elecraft] Question on Moving to Montana To: elecraft@mailman.qth.net Message-ID: [EMAIL PROTECTED] Content-Type: text/plain; charset=iso-8859-1 I'm considering moving to the Bitterroot Valley south of Missoula, Montana. Is there anyone on this list who lives in that area who could provide me more information on living there? Please reply directly to me since this email is grossly off topic. -John KI6WX ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] Re: KPA100 middle screw alteration
Don't want to drag this out, but I am with you Ron. I find that the warts give the K2/100 an unfinished look, stands out like a sore thumb against most other gear in the shack. I hope that any new products that might come from Elecraft will NOT have warts. 73, Geoff GM4ESD - Original Message - From: ZL1TW [EMAIL PROTECTED] To: elecraft@mailman.qth.net Sent: Monday, February 07, 2005 3:36 AM Subject: [Elecraft] Re: KPA100 middle screw alteration When I replaced the screws on my K2/100, I drilled a hole right through the heat-sink rail on the KPA100 at the middle screw mounting, and tapped it for 4-40 and installed a bit longer screws. No messing about with inserts, quick and easy, and is not noticeable. Just need the appropriate tap. Cheers..Ron ZL1TW ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] on the topic of autotuners - the ability to mount themremotely
Gary, Specs would also need to address possible RFI problems caused by MUX etc, transmit and receive. Can be a problem if design is skimpy, electrically and mechanical. But great idea, if relays don't wake neighbours. 73, Geoff. GM4ESD - Original Message - From: Gary Hvizdak [EMAIL PROTECTED] To: elecraft@mailman.qth.net Sent: Sunday, February 06, 2005 7:32 PM Subject: [Elecraft] on the topic of autotuners - the ability to mount themremotely Darrell, That's a fine idea. Would it be feasible for such a remote tuner to have a local MUX/encoder/sending unit so the power and control signals could all be provided via a single coax line? The specifications would need to address maximum cable runs for RG-58 and RG-8. -- Gary, KI4GGX K2 #4067 ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Subject: [Elecraft] External Tuner for K-2
I've used the AT11-MP with my K2/100 (I wanted the metering). You should be able to use the KAT100 with the addition of the KIO for QRP without any problem. You can keep or sell the KIO once you go with the KPA100. With the LDG, you just won't have the quick band change as with the KAT100 directly interfaced to the rig. A loss of time in contests, but a minor inconvenience for regular operations. 73, Julius n2wn ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
RE: [Elecraft] on the topic of autotuners
I own several tuners to operate other equipment, which I must sadly admit I own, and Elecraft tuners outperform, IMHO, all of them! Bill WR Johnson 920-421-1172 -Original Message- Three reasons: 1. (obvious) the integrated, automatic pre-setting-per-antenna-per-VFO function, and the (also obvious) dual antenna jack feature ... just way too useful to not have. 2. (not so obvious) the LDG and most other relay-type autotuners stop diddling the Ls and Cs when the indicated VSWR ratio gets to a place where they decide it's OK. The Elecraft tuning algorithm is recursive, passing the implicit null(s) and finding the real one. Once you have this feature, you won't go back. 3. (also not obvious) the Elecraft autotuners do a better job matching the odd, and often abruptly high impedances of field antennas, than the LDG or the SGC ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] presto selecto, redux
I wrote: The Elecraft tuning algorithm is recursive, passing the implicit null(s) and finding the real one. Once you have this feature, you won't go back. Andrea asked: Could you elaborate on this point? Well, perhaps an elaboration is best made by the guys that made the thing. The 'net' of the issue is that the ideal setting for the Elecraft tuner's relays is found by pressing, just once, the tune button. With other tuners, they click and clack until the first time the thing finds 1.6:1 or some such, and then fine tuning -or a search for some other LC combination- is up to you, if you have manual controls. Like I mentioned, it's probably best if Elecraft posted some clearer language about how their auto-couplers (not really antenna tuners, but we know that) work, versus the others. Related topic: didn't someone say they had a method to dampen the roar of the KAT100? Who was that, and, what did your do? Is it scientifically repeatable, or, do I have to experiment? Other related topic: I wish the KAT2 and KAT100 settings were stored per VFO, per antenna, instead of just per band per antenna. This should be a selectable menu item, of course, and I know there's precious little spare memory for the feature. I use the VFOs for a makeshift band-stacking register. Or, perhaps N4PY could access a little-known command to make his external control program provide a virtual band-stacking register function, to include the ATU presets. Would that such an hidden command were available. Maybe it is? Final and semi-related topic: I'd like to find out which decent and comprehensive logging programs support CW keyboard function using the KY command of the K2. I use DX4WIN now, it's superb, but despite years of haranguing, KK4HD hasn't added this KY capability (but he's added native support for the Orion, even though there's only a few hundred of them out there and there's nearly 5000 K2 rigs, go figure) and my patience is wearing thin. __ Do you Yahoo!? Meet the all-new My Yahoo! - Try it today! http://my.yahoo.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] Popping noise in audio
Just used my newly completed K2 for my first contest - FYBO. There was only one thing that was not 100%. I found that, on 40m and below, with or without a headset, there was a popping kind of sound in the audio when transmitting WITH THE PREAMP ON. It was not detectable with the Preamp OFF, or on 20m, 15m or 10m with the Preamp ON. Filter settings were 500 Hz for FL1 and AF1 in all tests. I did not hear it in SSB mode. Any ideas? Thanks from Mike, NJ2OM ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] Re: KPA100 middle screw alteration
Am getting a bit fed up of my K2 scratching it's brother (KPA100/KAT100 in EC2 case) and a FT1000MP - well forget the last one.. Might do the countersink mod some time. 73 Stewart G3RXQ On Mon, 7 Feb 2005 10:02:40 -, Geoffrey Mackenzie-Kennedy wrote: Don't want to drag this out, but I am with you Ron. I find that the warts give the K2/100 an unfinished look, stands out like a sore thumb against most other gear in the shack. I hope that any new products that might come from Elecraft will NOT have warts. 73, Geoff GM4ESD - Original Message - From: ZL1TW [EMAIL PROTECTED] To: elecraft@mailman.qth.net Sent: Monday, February 07, 2005 3:36 AM Subject: [Elecraft] Re: KPA100 middle screw alteration When I replaced the screws on my K2/100, I drilled a hole right through the heat-sink rail on the KPA100 at the middle screw mounting, and tapped it for 4-40 and installed a bit longer screws. No messing about with inserts, quick and easy, and is not noticeable. Just need the appropriate tap. Cheers..Ron ZL1TW ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] Which Audio Filter Kit?
I have had my K2/100 with KDSP2 for 4 months now and almost never use the DSP. The stock filters in the K2 seem to work just as good, and often better, than the DSP filters but that is very much a matter of taste I think. I operate only cw and my comments apply only to cw mode. I like the DSP 'de-noiser' but I live in a pretty quiet environment and rarely think to use it. In a noisier environment it might be worth the cost of the DSP2 all by itself. As you can see this is a very incomplete response to your question. The answer depends a lot on your preferred modes and environment and I will be watching to see what others say. The bottom line for me, though, is that both the DSP or KAF2 are minor enhancements to an excellent receiver. Don K7FJ Hopefully, I'm about two and a half weeks from ordering a K2 with about four accessory kits. My question today is how much difference is there in performance between the KDSP2 and the KAF2? Is the KDSP2 worth the extra $140? I'm been using an IC-746pro for about a year and a half so I am familiar with the use of a DSP. Comments and thoughts would be appreciated. Jim, AB0UK ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] Top posting officially OK here [End of Thread]
Folks, Top posting is officially OK here. It is by far the fastest way (with fewest scrolling key-strokes) for me to read the high volume of emails I receive daily from the Elecraft list. Bottom posting is a killer for me. (I'm using Mozilla Thunderbird email..) Please, lets kill this thread for now. Address any further comments on this topic to the list owner (me :-) 73, Eric WA6HHQ Elecraft ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] Which Audio Filter Kit?
Don wrote: I have had my K2/100 with KDSP2 for 4 months now and almost never use the DSP. The stock filters in the K2 seem to work just as good, and often better, than the DSP filters but that is very much a matter of taste I think. I operate only cw and my comments apply only to cw mode. I agree completely. I thought I would use the narrow DSP filter, but it really doesn't seem to increase the copiability of a CW signal over the basic crystal filters. I like the DSP 'de-noiser' but I live in a pretty quiet environment and rarely think to use it. In a noisier environment it might be worth the cost of the DSP2 all by itself. I live in a relatively noisy location, and I have the denoiser on 100% of the time. I love it! Again, I only operate CW so I don't know if it's useful on SSB. -- 73, Vic, K2VCO Fresno CA http://www.qsl.net/k2vco ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] Which Audio Filter Kit?
I have to disagree with the other guys .. I like the DSP in some circumstances, it seems to be able to dig weak CW out of the noise on occasions where I can't hear it at all with the normal filter (and just barely with no filter). Where it really shines in on the digital modes .. I user the RTTY mode filters FL2/3 on RTTY and FL4 on PSK/Hell with great success. YMMV de John/W1RT On Sun, 6 Feb 2005 15:57:01 -0800 (PST), Jim Harris [EMAIL PROTECTED] wrote: Good Evening Everyone: Hopefully, I'm about two and a half weeks from ordering a K2 with about four accessory kits. My question today is how much difference is there in performance between the KDSP2 and the KAF2? Is the KDSP2 worth the extra $140? I'm been using an IC-746pro for about a year and a half so I am familiar with the use of a DSP. Comments and thoughts would be appreciated. Jim, AB0UK __ Do you Yahoo!? Read only the mail you want - Yahoo! Mail SpamGuard. http://promotions.yahoo.com/new_mail ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] KX1: ATU and misc
Hello. Been playing around with my newly built ATU for the KX1 and I'm a bit puzzled by a few minor things: 1) my G5RV, accidentally shortened because of a wind gust, cannot be tuned by my IC-736 in 30m while the KXAT1 happily reports a perfect match (r1.0). Is that plausible? 2) in order to debug the problem above, how can I force the ATU to forget the 30m band LC settings and retune, possibly without resetting the main cpu? If I force a retune in 20m and 40m I hear lot of relays clicking, while all is quiet on 30m. I checked the error code and it is E00, so I'm stuck. 3) the pwr meter of the ATU reports 5.2-5.5W on 30m as opposed to 3.0-3.3W on 40m and 3.5-3.8W on 20m. No accurate calibration was done, but the difference is striking. Any clues/things to investigate? As a side-note (pun not intended), with respect to the KX1 power mods suggested a while ago, I have a question: has anyone thought about putting a fuse on the battery line? The potential for damage due to a shorted Q6 is quite relevant even when running off internal batteries; my external power cord is fused and this has already saved me once 8-) B73, Andrea. -- Homepage: http://andrea.borgia.bo.it /Amateur radio: IZ4FHT ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] Tune position power adjustment
Hi to all, I have been using my K2/100 #4618 for the last month with marvelous results both in RX and TX. I have also been using a manual ATU to tune my inverted V in all bands, where I have the data on a paper and I adjust accordingly in a matter of a few seconds. The only thing that I do from time to time is to fine tune the SWR depending on the exact frequency within each band, and I use the tune option for this. Even if the power is all the way up to 110W, the rig will output 20W for tuning and that is good, but I only need 2-3W for my fine adjustments which will strain the finals less and create less QRM during the couple of seconds that I need. Here comes the question: Is there any hardware or software adjustment possible that will make the K2/100 put out less than 20W when the tune function is activated even with higher requested power settings ? That would be very convenient in order to avoid having to manually decrease the power to the 2-3W level every time I tune and then having to increase it back to 100W for the QSO. 73, Marinos, KI4GIN ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] Which Audio Filter Kit?
The following is only my opinion... I had the KAF2 and then built the KDSP2. The denoiser is ok, but I found that the DSP filters made the rig hard to listen to. This is more pronounced on SSB. The auto-notch was helpful, but it didn't make up for the irritating quality of the DSP filters. I tried all sorts of settings and just never thought it sounded right. I re-installed the KAF2 and I'm happier now. It's not perfect, but it doesn't distract from the QSO. If it makes any difference, I have had (and still have one) rigs with DSP from other manufacturers. I haven't been thrilled by any of them. My favorite filter is still an old Datong FL-3! So that's my take on it. I know lots of folks are happy with DSP. I just think it makes everything sound like a cheap cell phone. 73, Lonnie NY2LJ ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] Which Audio Filter Kit?
I have yet to find settings where I can use the DSP NR on SSB; it sounds like I'm listening through a pillow. Works great, otherwise! 73, David N2RDT -- It takes brains. It's not like forward, where you can get away with scoring and not play defense... On defense you have to be thinking. ---Chris Chelios David M. Katinsky [EMAIL PROTECTED] From: [EMAIL PROTECTED] Date: Mon, 07 Feb 2005 15:24:28 -0500 To: elecraft@mailman.qth.net Subject: Re: [Elecraft] Which Audio Filter Kit? The following is only my opinion... I had the KAF2 and then built the KDSP2. The denoiser is ok, but I found that the DSP filters made the rig hard to listen to. This is more pronounced on SSB. The auto-notch was helpful, but it didn't make up for the irritating quality of the DSP filters. I tried all sorts of settings and just never thought it sounded right. I re-installed the KAF2 and I'm happier now. It's not perfect, but it doesn't distract from the QSO. If it makes any difference, I have had (and still have one) rigs with DSP from other manufacturers. I haven't been thrilled by any of them. My favorite filter is still an old Datong FL-3! So that's my take on it. I know lots of folks are happy with DSP. I just think it makes everything sound like a cheap cell phone. 73, Lonnie NY2LJ ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] test
test ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] test again.
sorry for the title, but the mail was being returned as suspected spam. who knows? hello all, i joined this list not long ago to keep up on the discussion of the elcraft rigs. now, with uncle sam giving me a little coin in my pocket, i will be making a purchase in the near future. i will probably be going with the k2. the k1-4 is less but the ability to add ssb is not there. and that is something i would like to do in the future. my question is, what would you order to start with other than the transceiver kit? there are several options and i will not be able to afford all the options at the time of the initial purchase. wanted to hear from the experts to get a newbie kit builder started and get the options that would be needed most then add from there. or, would you go with the k1-4? tnx in advance for all help and best 73 mike ku4yp florida. ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] Which Audio Filter Kit?
[EMAIL PROTECTED] wrote: I had the KAF2 and then built the KDSP2. The denoiser is ok, but I found that the DSP filters made the rig hard to listen to. This is more pronounced on SSB. The auto-notch was helpful, How about switching KDSP2 DSP-filters off? Use DSP filters only when conditions are requiring it. Is it possible? Rolf oh6kxl -- When replying my message, please - quote only necessary part of my text - write you reply under the quotation. ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] Re: KX1: ATU and misc
Hi Andrea, As the designer of the KX1 and options I thought I'd chip in here. 1) my G5RV, accidentally shortened because of a wind gust, cannot be tuned by my IC-736 in 30m while the KXAT1 happily reports a perfect match (r1.0). Is that plausible? Tuners in some commercial transceivers are limited either by power handling or by firmware to 3:1. The KXAT1 is quite capable of matching some (but not all) loads that are 10:1 or higher, thanks to the low power of the KX1. 2) in order to debug the problem above, how can I force the ATU to forget the 30m band LC settings and retune, possibly without resetting the main cpu? If I force a retune in 20m and 40m I hear lot of relays clicking, while all is quiet on 30m. I checked the error code and it is E00, so I'm stuck. Just tune up into a dummy load on any band you want to reset. 3) the pwr meter of the ATU reports 5.2-5.5W on 30m as opposed to 3.0-3.3W on 40m and 3.5-3.8W on 20m. No accurate calibration was done, but the difference is striking. Any clues/things to investigate? If this happens even on a dummy load, the rig probably really is putting out higher power on 30 m. The knee in the low-pass filter moves around a bit and can have a large effect on per-band efficiency. The knee can be adjusted to equalize the bands somewhat by squeezing or spreading the low-pass filter toroid windings. As a side-note (pun not intended), with respect to the KX1 power mods suggested a while ago, I have a question: has anyone thought about putting a fuse on the battery line? The potential for damage due to a shorted Q6 is quite relevant even when running off internal batteries; my external power cord is fused and this has already saved me once 8-) In general I recommend operating the KX1 at 4 W and lower. The extra dB or two you get by exceeding this is usually not worth the risk. As for fusing, I don't know of any cases of battery melt-down on the KX1. Remember that the maximum power output when running from the internal battery is about 2 watts. If you really wanted to fuse it, you could use a very small self-resetting polyfuse -- see www.digikey.com for possible types to use. The main problem in the KX1 is space, so you'll need a *really* small fuse. 73, Wayne N6KR --- http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] DSP NR on SSB
Thanks, I'll have to go back and re-check the AGC. The radio is just great, save for SSB w/NR. I don't have a lot of experience with other rigs, so I appreciate the feedback that I can probably make it better. 73 N2RDT -- It takes brains. It's not like forward, where you can get away with scoring and not play defense... On defense you have to be thinking. ---Chris Chelios David M. Katinsky [EMAIL PROTECTED] From: [EMAIL PROTECTED] Date: Mon, 07 Feb 2005 15:47:55 -0500 To: elecraft@mailman.qth.net Subject: Re: Re: [Elecraft] DSP NR on SSB Dave - I recently installed the DSP and do not find that it sounds as if it is through a pillow. This particular K2 has the best amplification and audio of the 3 I have had - by FAR due to I believe some really judicious adjusting of the AGC etc per all the discussions on the archive. I wonder if double checking to make sure all audio potential etc etc is totally tweaked BEFORE installing the DSP will improve the muffled effect you are getting. I find the least degradation of the sound I've heard based on in shack comps with 7565ProII DSP and SCG's DSP and consequently very usable. Just my thoughts... 73/Tim NZ7C From: David M. Katinsky [EMAIL PROTECTED] Date: 2005/02/07 Mon PM 03:29:37 EST To: [EMAIL PROTECTED], elecraft@mailman.qth.net Subject: Re: [Elecraft] Which Audio Filter Kit? I have yet to find settings where I can use the DSP NR on SSB; it sounds like I'm listening through a pillow. Works great, otherwise! 73, David N2RDT ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] AGC-Preset
Dear All, Page 47 in the (error) manual says: Adjust R1 on the control-board to 3.8 V. I can only reach 3.6V at pin 1 of U2 ( R1 is fully turned counter clockwise). With no signal at the antenna (IF-Gain MAX) i have 3.58 V at pin 1 of U2. With iF-Gain at MIN i have the 4.6V. This seems ok. But the AGC @Saturation is only 4.6V, far away from the expected 6.9V. The radio sounds good. The DC-voltage at U12, Pin 5 is only 3.8, not the expected 5.0. Is there anything wrong? Thanks for your help! Michael, DC0ZO K2 #4691 ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] T1 Antenna Tuner
Hmm.. pretty quiet about this tuner. Pictures surfaced on the Nor Cal site. http://www.norcalqrp.org/mtg2005_02.htm Bottom of page. Just bought an AH-4 and would have liked to have had a T1 in the 100w range. Should I return the AH-4 and wait? tnx. -- 73 Fernando N2FQ/NNNØJYM San Jose, CA http://pages.sbcglobal.net/n2fq ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] Re: KX1: ATU and misc
wayne burdick wrote: Just tune up into a dummy load on any band you want to reset. Ok, I'll try that asap, but I'm still curious as to why there's no relay activity on 30m when forcing a tune operation: the antenna is not tuned to 30m natively, only on 20m, but on 20m the atu clicks and on 30m it doesn't. Well, I'll get back to you when I have tried the dummy load (no, I should build one is the answer to the question you were thinking to ask ;-) In general I recommend operating the KX1 at 4 W and lower. The extra dB or two you get by exceeding this is usually not worth the risk. Sorry, I wasn't being clear: I was talking about the power-supply mods, such as cutting a trace to use the jack's builtin switch. The scenario I had in mind is a melt-down caused by a short-circuit, not extended operation at high power levels. internal battery is about 2 watts. If you really wanted to fuse it, you could use a very small self-resetting polyfuse -- see www.digikey.com for possible types to use. The main problem in the KX1 is space, so you'll need a *really* small fuse. Yep, that's the same issue I thought of. Thanks for the infos and for the pointer, I'll look into it. B73, Andrea. -- Homepage: http://andrea.borgia.bo.it /Amateur radio: IZ4FHT ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] Which Audio Filter Kit?
I didn't think it was worth the trouble. I like having the KAF2 filters and they're tight enough so that I can get around most hetrodynes. If conditions were marginal, the de-noiser often made things worse, not better. If you think about it: Sometimes you can copy weak signals best with the filters in the radio wide open and the filter between your ears doing all the work. I tried to like the DSP. I'm just more pleased with the KAF2. 73, Lonnie NY2LJ How about switching KDSP2 DSP-filters off? Use DSP filters only when conditions are requiring it. Is it possible? Rolf oh6kxl ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
RE: [Elecraft] AGC-Preset
Michael, If you are unable to adjust the AGC Threshold to 3.8 volts or higher with the RF gain control set fully clockwise, the first thing to check is the 8A voltage supply rail. Checking it directly on RP6 pin 3 would be the best, but if you can't get to that point with power on, check at the source U4 OUT. If that voltage is not close to 8 volts, that is the cause of your problem. Don't be concerned with all the other points until you are able to get the voltage at U2 pin 5 up to at least 3.8 volts. BTW, the 3.8 volts may be just a starting point - you should set the optimum AGC Threshold after the receiver is working well - internal receiver noise should not activate the AGC - and the point will vary from K2 to K2. I am building 2 K2s at the moment and when I optimized the AGC, one ended up at 3.8 volts while the other was 3.65 volts. 73, Don W3FPR -Original Message- Dear All, Page 47 in the (error) manual says: Adjust R1 on the control-board to 3.8 V. I can only reach 3.6V at pin 1 of U2 ( R1 is fully turned counter clockwise). With no signal at the antenna (IF-Gain MAX) i have 3.58 V at pin 1 of U2. With iF-Gain at MIN i have the 4.6V. This seems ok. But the AGC @Saturation is only 4.6V, far away from the expected 6.9V. The radio sounds good. The DC-voltage at U12, Pin 5 is only 3.8, not the expected 5.0. Is there anything wrong? Thanks for your help! Michael, DC0ZO K2 #4691 ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] T-1 Tuner
I went to the suggested website and looked at the pictures. However, there is no more information about this tuner. Can anyone tell us when the T-1 will be available and what the price is expected to be? Ci Jones WU7R FISTS 10789 NAQCC 306 ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] KPA 100
HI all. I'm doing the test and alignment on the KPA 100. My trouble starts when I try the SWR bridge null adjustment. No matter what I do with C1 I can't get a 1.0-1 indication on the K2 LCD. When I adjust C1 the indicated power out swings from low to high but the SWR doesn't change at all. Also, I'm using the dummy load in my MFJ-949E on the bypass side of the tuner switch. I don't see a corresponding change in power out while adjusting C1. I've checked D16 and D17 and both are installed correctly. i've also checked around T1 and R21 and R22 for signs of trouble but don't see anything. Any suggestions would be appreciated. Thanks. -- R. Kevin Stover ACØH Reclaim Your Inbox! http://www.mozilla.org/products/thunderbird ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] Which Audio Filter Kit?
For what it's worth, I never use it on fone .. but then I don't use fone all that often :) de John/W1RT On Mon, 7 Feb 2005 15:24:28 -0500, [EMAIL PROTECTED] [EMAIL PROTECTED] wrote: The following is only my opinion... I had the KAF2 and then built the KDSP2. The denoiser is ok, but I found that the DSP filters made the rig hard to listen to. This is more pronounced on SSB. The auto-notch was helpful, but it didn't make up for the irritating quality of the DSP filters. I tried all sorts of settings and just never thought it sounded right. I re-installed the KAF2 and I'm happier now. It's not perfect, but it doesn't distract from the QSO. If it makes any difference, I have had (and still have one) rigs with DSP from other manufacturers. I haven't been thrilled by any of them. My favorite filter is still an old Datong FL-3! So that's my take on it. I know lots of folks are happy with DSP. I just think it makes everything sound like a cheap cell phone. 73, Lonnie NY2LJ ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] K2 # 4670 Front Panel Resistance Checks
On page 28, Front Panel Resistance Checks J1 pins 1 - 7 no movement on DMM J1 pins 9 - 14 no movement on DMM Advice to trouble shoot ? Have looked for bridges, un soldered connections with good glass VR, al KI4HRN Allan Bacon [EMAIL PROTECTED] ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] Re: T1 Tuner [was: T-1 Tuner]
Allow me to set the record straight. There is *no* hyphen in Elecraft T1 :) More later. 73, Wayne N6KR --- http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] New DSP control with N4PY software
Hi all. Some of you may recall that a few weeks ago I posted an announcement about Carl, N4PY, planning to add DSP control capability to his software. Well, he's done it and it works great. He's added a set of buttons to the front panel to select DSP on/off, step through the four filters, select noise reduction on/off, level of noise reduction, and notch filter on/off. He's already sending out updates to subscribers. As before, I have no financial interest in N4PY products and remain grateful for all the options out there for rig control software. 73, Parker WD8JOL K2 #2636 ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] K1 Instantaneous frequency shift at top of transmission
Hi all My K1 (#1963) is now ready to go but have a problem. At the top of transmission I find a little frequency shift which we sometimes found in old days. I do not know what I say in a word, chirp ??? Following are test condition, *Dummy load connected *external PS for 100W class tranceiver *VFO range is 80KHz *output power 5W (found the same in 2W setting) Any suggestion will be appreciated. 73 de aki, ja1nlx ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] K2 40m Tx current drain
I am just at the 40m L1/2 alignment for my K2. On rx with the lcd set at nite, I show 13.6v @ .18a. Using an external analog wattmeter into a dummy load, I measure at 5 watts 12.9v and 1.8a. Also, the display shows the power output at 3.5w instead of 5. When I tune the power output control so the external wattmeter shows 2 watts, the power display says 1.5 watts. Is this a sign of trouble? Why would there be a difference between the external wattmeter and the power display on the k2? 73 Neal ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] New DSP control with N4PY software
I received my new revision of the N4PY software yesterday and have already managed to give it a good workout with my K2. I'm really pleased with the new DSP controls. Until now I had been using 3 of the 6 user configurable buttons for primary DSP control. Now I can use those 3 buttons for other functions. Now if only somebody can come up with some software to improve propogation ;-) Ben Dalfen 4X1BD ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
